Home / 752,874.40-1,129,311.60-331,703.20

Finding the Fourth Proportional to 752,874.40, 1,129,311.60 and 331,703.20

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Solution

The fourth proportional to 752,874.40, 1,129,311.60 and 331,703.20 is: 497,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,874.40 : 1,129,311.60 = 331,703.20 : x
  2. Step 2: Convert to fraction form
    752,874.40/1,129,311.60 = 331,703.20/x
  3. Step 3: Cross multiply
    752,874.40x = 1,129,311.60 × 331,703.20
  4. Step 4: Simplify right side
    752,874.40x = 374,596,271,517.12
  5. Step 5: Solve for x
    x = 374,596,271,517.12/752,874.40
  6. Step 6: Final answer
    x = 497,554.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.